This article is the third of a three part series from MLSDev that shows you how to build an eCommerce API using Ruby on Rails. In this part, readers are shown how to secure their online store by implementing registration and authorization. A Github project accompanies this series.

The Sage Direct API brings Sage Payments to a whole new level with its full suite of products and services. Using this API, developers can integrate healthcare, retail, e-commerce, and more with the...